Recently there has been a good deal in the news about acts of civil disobiedience, acts performed by those who simply wanted to make known their opinion on a certain issue.
Abdu'l-Baha has offered guiding words to those who want to broadcast their feelings and/or beliefs. Here is a passage writte by Abdu'l-Baha:
"Wherefore, O beloved of the Lord, strive ye with heart and soul to receive a share of His holy attributes and take your portion of the bounties of His sanctity -- that ye may become the tokens of unity, the standards of singleness, and seek out the meaning of oneness; that ye may, in this garden of God, lift up your voices and sing the blissful anthems of the spirit. Become ye as the birds who offer Him their thanks, and in the blossoming bowers of life chant ye such melodies as will dazzle the minds of those who know. Raise ye a banner on the highest peaks of the world, a flag of God's favour to ripple and wave in the winds of His grace; plant ye a tree in the field of life, amid the roses of this visible world, that will yield a fruitage fresh and sweet. " Selections from the Writings of 'Abdu'l-Bahá, p. 11